baber/WOPTO huggingface dataset:
Patent CA-2304561-C (CA)
Title: Agent moussant sensiblement anhydre et procede de production de celui-ci
Inventor: SUMITOMO SHIGERU
IPC: C07C281/20
Filed: 1998-07-10
Granted: 2009-09-29
Abstract: L'invention concerne un agent moussant présentant des propriétés remarquables de solidification régulée, et qui conserve une fluidité et une dispersibilité élevées dans une résine, même après stockage prolongé; et un procédé de production de celui-ci. L'agent est sensiblement anhydre et son procédé de production comporte l'étape consistant à traiter un agent moussant au moyen d'un agent de traitement de surface capable d'éliminer l'eau de l'agent moussant, et, si nécessaire, chauffer l'agent moussant au cours du traitement ou après celui-ci.
Patent CA-2311628-C (CA)
Title: Grease prepared from chemically inert oil and thickening agent, and process for making same
Inventor: SPRAGUE LEE G
IPC: C10M115/06
Filed: 1998-11-05
Granted: 2007-05-08
Abstract: A grease made by combining polychlorotrifluoroethylene oil with a thickening agent comprising polychlorotrifluoroethylene (PCTFE) polymer. The thickening agent is made by polymerizing chlorotrifluoroethylene [R-1113] in the presence of a teloagen, which is 2,2-dichloro-1,1,1-trifluoroethane[R-123] or a homolog thereof, namely CF3-CF2-CHCl2, CF3-CF2-CF2-CHCl2, and CF3-CF2-CF2-CF2-CHCl2.
Patent CA-2312151-C (CA)
Inventor: SINGH AMARDEEP
IPC: E21B10/20
Filed: 2000-06-23
Granted: 2005-12-06
Abstract: A roller cone drill bit includes a bit body adapted to be rotated about a longitudinal axis. At least one leg depends from the bit body, and a journal is cantilevered from the leg. A roller cone is rotatably mounted on the journal.  A cone retention member is disposed between a first slot in the journal and a corresponding second slot in the roller cone. An access hole runs through the journal to the first slot, penetrating the first slot at a location away from the top dead center of the first slot.
Patent CA-2315567-C (CA)
Title: Shield for gas burner
Inventor: CRAVEN JOSEPH BRAXTON
IPC: A47J37/07
Filed: 2000-08-11
Granted: 2005-01-25
Abstract: An apparatus and mechanism for protecting a gas burner of a barbecue grill regardless of the size or shape of the barbecue grill's cooking chamber. In a preferred embodiment, a shield incorporates a base member and a sliding member, with the sliding member being adapted to engage the base member for adjusting the length of the shield. Preferably, the base member and sliding member each have two side panels, with a centerline fold disposed between the side panels. A method for protecting a gas burner of a barbecue grill regardless of the size or shape of the barbecue grill's cooking chamber is also taught.
Patent CA-2315574-C (CA)
Title: Floor box cover assembly
Inventor: HULL ERIC G
IPC: H02G3/14
Filed: 2000-08-04
Granted: 2006-05-23
Abstract: A cover assembly for a floor box includes a ring, a cover, and a gasket. The ring is configured to support an electrical receptacle within an open upper end portion of the floor box. The cover has an access opening for providing access to the receptacle, and has an access door for closing the access opening. The ring, the cover and the gasket are configured for interconnection in installed positions in which a portion of the gasket is deflected into an annular configuration interposed radially between the ring and the cover. When the gasket is thus installed between the ring and the cover, the edge portion of the gasket establishes a seal that surrounds the access opening in the cover. Additionally, the cover has apertures for receiving fasteners that interconnect the ring, the cover, and the gasket in their installed positions. The access door is configured to overlie all of those apertures, and thereby to conceal all of those fasteners from view, when the door is in a closed position.
Patent CA-2315820-C (CA)
Title: Phthalonitrile prepolymerization composition
Inventor: KELLER TEDDY M
IPC: C08G73/00
Filed: 1999-01-13
Granted: 2009-09-01
Abstract: A polymerizable composition suitable for storage prior to polymerization is made by mixing a phthalonitrile monomer and a curing agent under non-reactive conditions below the melting temperatures of the phthalonitrile monomer and the curing agent and in the absence of a solvent to create a homogeneous, unreacted mixture.
Patent CA-2317876-C (CA)
Title: Disposable diaper
Inventor: MISHIMA YOSHITAKA
IPC: A61F13/15
Filed: 2000-09-08
Granted: 2005-07-12
Abstract: A diaper having an absorbent body 1 including a topsheet 2, a backsheet 3, a core 4 disposed therebetween and a first liquid-barrier wall 5 lying in a rear half section 1e of the          ~. body 1 and extending above an upper surface of the topsheet 2 so as to define a first opening 8 in a substantially central zone of the first liquid-barrier wall, and the body 1 further includes a second liquid-barrier wall 6 lying in a front half section 1d of the body 1 in one-behind-another relationship with the first liquid-barrier wall 5 so as to define a second opening 9 in a substantially central zone of the second liquid-barrier wall 6 so that urine discharged into the second opening 9 may be absorbed by the core 4 through the topsheet 2 and feces discharged into the first opening 8 may be absorbed by the core 4 through the topsheet 2.
Patent CA-2320532-C (CA)
Inventor: MANZOLI NICHOLAS J
IPC: A61C19/00
Filed: 2000-09-22
Granted: 2009-02-03
Abstract: In general, the invention consists of indicator means for indicating the usage of an endodontic instrument by providing a visual indication of the number of sterilizations of the instrument. The indicator means includes a modified "stop" or "washer" which is used with each endodontic instrument. The "stop" includes a dye compatible base which is impregnated with a diffusible dye Composition. The base is made of a dye compatible material which enables the diffusible dye to migrate or diffuse as a result of a specific number of sterilizations at a specific temperature from an interior portion in the base where the dye is not visible to an exterior position where the dye is visible. Since the "stop" is also sterilized along with the instrument, the "stop" will change color after a specified number of sterilizations of the instrument has occurred. Since each endodontic instrument is sterilized after each use, the change in color of the "stop" will also provide a visual indicator of the number of times the endodontic instrument has been used. More specifically, the base is of pure polymer composition, essentially free of additives, and the dye is any of various known polymer compatible dyes capable of diffusing within a dye compatible polymer. An alternate configuration of the invention utilizes materials of different melting points instead of diffusible dyes in the wells on the instrument handles.
Patent CA-2323330-C (CA)
Title: Air separation
Inventor: HIGGINBOTHAM PAUL
IPC: F25J3/04
Filed: 2000-10-16
Granted: 2008-12-09
Abstract: A double column air separation method in which a first stream of compressed air is cooled by passage through a main heat exchanger 6 from its warm end 8 countercurrently to a nitrogen stream withdrawn from the top of a lower pressure rectification column 22. The first stream of compressed air flows from the main heat exchanger 6 into a higher pressure rectification column 20 through and inlet 21. A  second stream of compressed air is also passed into the warm end 8 of the main heat exchanger 6 and is cooled therein. The second stream of compressed air passes out of heat exchange with the nitrogen stream at a temperature lower than the exit temperature therefrom of the first stream of compressed air and at least 5K  lower than the bubble point temperature of air at the pressure prevailing at the inlet 21. A stream of oxygen-enriched liquid passes isenthalpically from the bottom of the higher pressure column 20 to the lower pressure column 22.
Patent CA-2325099-C (CA)
Title: Filler neck closure with static charge dissipator
Inventor: GRIFFIN JEFFERY
IPC: B60K15/04
Filed: 2000-11-03
Granted: 2005-03-08
Abstract: A fuel cap for use on a vehicle for establishing a common electrical potential with the fuel tank of the vehicle.      The fuel cap includes a handle, a fuel port closure for engaging a fuel receiving assembly, an electrically conductive retainer on the fuel cap and a seal. The electrically conductive retainer maintains an electrically conductive contact to the fuel receiving assembly while the seal prevents the escape of fuel vapors through the fuel receiving assembly.      The seal is maintained until substantially achieving a common electrical potential between the cap and the fuel receiving assembly by way of the electrically conductive retainer. A method of establishing a common electrical potential and preventing escape of fuel vapors from a fuel port of a fuel receiving assembly prior to establishing the common electrical potential. The method employs a fuel receiving assembly which defines a fuel port, a fuel cap which is engageable with and covers the fuel port. The cap includes an electrically conductive retainer, a handle, a fuel port closure and a seal.      The seal is maintained between the cap and the fuel receiving assembly. When the cap is engaged with the fuel receiving assembly, a common electrically conductive path is established between the electrically conductive retainer and an electrically conductive portion of the fuel receiving assembly.      The electrically conductive path is maintained between the retainer and the fuel receiving assembly until the common electrical potential is achieved. The seal is maintained and only disengaged after substantially achieving the common electrical potential.
Patent CA-2327341-C (CA)
Inventor: CARROLL BRIAN E
IPC: B29C73/30
Filed: 2000-02-07
Granted: 2003-04-29
Abstract: L'invention concerne un système, un procédé et un appareil destinés à la réparation d'une chenille souple sans fin (1) d'un véhicule à chenille tel qu'une motoneige et permettant d'allonger la durée de vie utile de la chenille et d'éviter sa destruction. Dans le mode de réalisation préféré, une section usée d'une chenille (1) de motoneige est d'abord préparée pour être réparée, à savoir nettoyée, polie et collée. On place ensuite des matériaux de réparation pour vulcanisation à chaud appropriés (81) sur l'endroit usé. Enfin, on utilise plusieurs outils (21, 22, 41, 42, 51, 61-69, 86) selon l'invention afin de presser ces matériaux (81) en place, et on applique la chaleur (23) et la pression nécessaires pendant le temps nécessaire pour compléter le processus de réparation.
Patent CA-2328184-C (CA)
Inventor: PIETRAS BERND-GEORG
IPC: E21B19/15
Filed: 1999-02-11
Granted: 2006-12-19
Abstract: An apparatus for delivering a tubular (9) to a well centre, which apparatus comprises means (13, 14) which, in use, inhibit swinging motion of the tubular (9) whilst it is suspended from an elevator.
Patent CA-2331141-C (CA)
Inventor: MEERPOEL LIEVEN
IPC: C07D249/12
Filed: 1999-05-06
Granted: 2008-10-28
Abstract: L'invention concerne de nouveaux composés représentés par la formule (I), les formes N-oxyde, les sels d'addition acides et les formes stéréo-isomères de ces composés. L représente un radical de formule (a), (b), (c), (d), (e) ou (f); chaque Alk représente indépendamment un alcanediyl C1-6; n est 1, 2 ou 3 ; Y est O, S ou NR<2>; R<1> représente l'aryle, Het<1>, ou un alkyle C1-6 éventuellement substitué; R<2> représente l'hydrogène; ou si R<1> et R<2> sont liés au même atome d'azote, ils peuvent être réunis pour former un radical hétérocyclique, ou ils peuvent être réunis pour former un radical azido; Chaque R<3> représente indépendamment l'hydrogène, l'hydroxy ou l'alkyloxy C1-4 ; aryl représente le phényle, le naphthalényle, 1,2,3,4-tétrahydronaphtalényle, indényle ou indanyle; chacun de ces groupes aryle peut être éventuellement substitué; Het<1> représente un radical monocyclique, bicyclique ou hétérocyclique éventuellement substitué; Het<2> est identique à Het<1> et peut également être piperazinyle, homopipérazinyle, 1,4-dioxanyle, morpholinyle, thiomorpholinyle; R<6> représente l'hydrogène ou l'alkyle C1-4; R<7> représente l'hydrogène ou l'alkyle C1-4; ou R<6> et R<7> forment ensemble un radical bivalent de formule  N=CH- (i), -CH=N- (ii), -CH=CH- (iii), -CH2-CH2 (iv)  un atome d'hydrogène pouvant être remplacé par un radical alkyle C1-4, dans les radicaux (i) et (ii), et un ou plusieurs atomes d'hydrogène pouvant être remplacés par un radical alkyle C1-4 dans les radicaux (iii) et (iv); D représente un dérivé de tétrahydrofuranne trisubstitué. Ces composés sont utilisés comme antifongiques. L'invention concerne également les procédés de préparation de ces composés, des compositions contenant ces composés et l'utilisation de ces derniers en tant que médicament.
Patent CA-2337846-C (CA)
Title: Polymorph of ritonavir
Inventor: NARAYANAN BIKSHANDARKOIL A
IPC: A61K31/427
Filed: 1999-07-19
Granted: 2006-02-21
Abstract: A new crystalline polymorph of ritonavir and methods for its use and preparation are disclosed.
Patent CA-2338584-C (CA)
Inventor: OGATA KENZO
IPC: C09C1/30
Filed: 1999-07-27
Granted: 2008-11-25
Abstract: An electrostatic developer comprising a mixture of: 1) a toner component containing image-forming particles; and 2) particles obtained by subjecting inorganic oxide or organic particles to a hydrophobic treatment with a dimethyl cyclopolysiloxane.
Patent CA-2339727-C (CA)
Inventor: WANG TING-I
IPC: G01F1/7086
Filed: 2001-03-02
Granted: 2004-01-27
Abstract: An optical flow sensor determines the velocity of a moving flow of air or other gas utilizing a plurality of photodetectors spaced apart in a direction parallel to the direction of gas flow. An optical beam is transmitted across the flowing gas and falls upon the photodetectors. Scintillations that occur in the flowing gas due to eddies and particulates in the gas are detected in all of the photodetectors, but at slightly different times due to the longitudinal separation of the photodetectors in the direction of gas flow. The output signals of the photodetectors are conditioned and amplified and transformed to digital form. Temporal cross correlation analysis is then performed on the digitized signals in a digital signal processor. A time differential between signals from the different photodetectors is then calculated electronically. The velocity of gas flow is then determined by dividing the spatial distance of separation between adjacent photodetectors by the time difference at which the same scintillation event is detected by each photodetectors.
Patent CA-2341513-C (CA)
Inventor: KOMIYAMA SUSUMU
IPC: G01J1/02
Filed: 2000-07-07
Granted: 2005-10-18
Abstract: L'invention concerne un détecteur d'onde millimétrique et d'infrarouge lointain présentant une très grande sensibilité et un temps de réponse plus court. Le détecteur comporte une entrée (1) pour introduire l'onde millimétrique incidente ou le rayonnement (2) dans l'infrarouge lointain incident dans une antenne de détection ; un substrat (4) de semi-conducteur sur lequel est formé un transistor (14) à un seul électron réglant le courant pénétrant un point quantique (12) semi-conducteur ; et des antennes papillon (6, 6a, 6b, 6c) pour concentrer l'onde millimétrique ou le rayonnement (2) dans l'infrarouge lointain sur un point quantique semi-conducteur définissant un espace submicronique du transistor (14) à un seul électron. Le point quantique, formant un système d'électrons à deux dimensions, absorbe efficacement le rayonnement concentré et maintient l'état d'excitation résultant pendant plus de 10 nanosecondes, de façon à permettre le transport de plus de 1000000 d'électrons pour un seul photon absorbé.
Patent CA-2342551-C (CA)
Title: Thermostatically controlled heater for gas fuel and gas pressure regulator
Inventor: LATUSEK JOHN PHILLIP
IPC: F02M21/02
Filed: 2001-03-30
Granted: 2005-03-22
Abstract: A heater for gas fuel mounted to a pressure reducing regulator to warm the gas after the temperature is reduced by the pressure reduction. The heater receives the fuel from the regulator through an external pipe and has separate gas and coolant passages therein. The coolant passage receives liquid engine coolant that heats both the gas and the regulator. A heater core has a plurality of radially extending fins around which the gas passes with the coolant passing through the interior of the core. Coolant flow is regulated by a thermostat that is responsive to the temperature of the gas to open and close the coolant passage.
Patent CA-2345782-C (CA)
Inventor: TSUKADA OSAMU
IPC: A61M5/152
Filed: 1999-07-29
Granted: 2008-01-29
Abstract: A portable painkilling system comprises: a first continuous injector (1) for liquid medicine which continuously discharges liquid medicine through a control path (131) in an outlet portion (13) for a given period of time; a flexible, elastic reservoir (3) connected to the outlet portion (13) of the first continuous injector (1) for liquid medicine at one end thereof, the reservoir (3) being adapted to constrict in a normal condition and to expand when liquid medicine from the first continuous injector (1) is being charged into the reservoir (3) so as to contain a maximum quantity of liquid medicine; and a second continuous injector (2) for liquid medicine having an inlet portion (22) connected to the other end (32) of the reservoir (3), the second continuous injector (2) being adapted to receive liquid medicine from the reservoir (3) and to continuously discharge liquid medicine stored in the second continuous injector (2) through a control path (231) in an outlet portion (23) for a given period of time.
Patent CA-2348741-C (CA)
Inventor: BANDARAGE UPUL K
IPC: A61K31/421
Filed: 1999-10-29
Granted: 2010-04-20
Abstract: L'invention concerne de nouveaux composés anti-inflammatoires non stéroïdiens nitrosés et/ou nitrosylés, et de nouvelles compositions comprenant au moins un composé anti-inflammatoire non stéroïdien nitrosé et/ou nitrosylé et, éventuellement, au moins un composé fournissant, transférant ou libérant de l'oxyde nitrique, élevant des niveaux endogènes du facteur relaxant dérivé de l'endothélium, simulant la synthèse endogène de l'oxyde nitrique, ou qui est un substrat de synthase d'oxyde nitrique. L'invention concerne également des procédés pour le traitement, la prévention et/ou la diminution de l'inflammation, de la douleur et de la fièvre, l'abaissement ou la réversion de la toxicité gastro-intestinale, rénale et autres toxicités résultant de l'utilisation de médicaments anti-inflammatoires non stéroïdiens, le traitement et/ou la prévention de troubles gastro-intestinaux, le traitement d'états d'affection et de troubles inflammatoires, ainsi que le traitement et/ou la prévention d'affections ou de troubles ophtalmiques.
Patent CA-2350446-C (CA)
Inventor: SCHMIDT WILLIAM P
IPC: B60R1/06
Filed: 2001-06-14
Granted: 2009-09-01
Abstract: A mirror assembly particularly adapted for use with an exterior automotive fender includes a plastic housing and plastic reflective surface element or lens. The housing has a slot formed therein which receives a tab formed on the lens to enable the housing and the lens to be snap-fitted together.
Patent CA-2350788-C (CA)
Inventor: MENTZER MATTHEW
IPC: A01B73/00
Filed: 2001-06-14
Granted: 2004-09-21
Abstract: A towed farm implement includes a set of auxiliary wheels mounted for elevating the implement to a height which permits the implement to be pulled over and lowered onto a transport trailer or which permits the trailer to be otherwise maneuvered to a loading position beneath the implement. Once the implement is loaded, a pivoted tongue of the implement is positioned so as to be used for the endwise transport of loaded implement. In one embodiment, the auxiliary wheels are mounted on their own lift arms for being swung vertically by an adjusting mechanism that is independent of that use to effect vertical adjustment of the ground wheels. In another embodiment, the wheel support arms of the ground wheels and the lift arms to which the auxiliary wheels are mounted are secured together for being swung by the same adjusting mechanism.
Patent CA-2353416-C (CA)
Inventor: JOYNER CHARLES H
IPC: G02F2/00
Filed: 2001-07-23
Granted: 2005-08-30
Abstract: An optical wavelength converter for converting a plurality of optical bits from a first wavelength to a second wavelength. The optical wavelength converter employs a directional coupler. The directional coupler has a first waveguide for receiving the plurality of optical bits in the first wavelength, as well as a second waveguide for receiving a continuous wave ("cw") signal in the second wavelength. The directional coupler also includes an output port, as well as a coupling region. In response to an optical bit of the plurality in the first wavelength being a binary one, the cw signal is coupled from the second waveguide to the output port.
Patent CA-2354129-C (CA)
Title: Method of preparation of 4-aminodiphenylamine
Inventor: FIEDLER KAROL
IPC: C07C209/68
Filed: 1999-04-29
Granted: 2009-01-06
Abstract: The present solution relates to a method of preparation of 4-aminodiphenylamine through an intermediate preparation of 4-nitrodiphenylamine and/or 4-nitrosodi-phenylamine and/or their salts by th e reaction of aniline with nitrobenzene in a liquid medium at a temperature of 50 to 130 .degree.C, under atmospheric or reduced pressure, in an inert atmosphere or in the presence of air oxygen, with subsequent hydrogenation of an intermediate of 4-nitrodiphenylamine and/or 4-nitrosodiphenylamine and side products, and by isolation of 4-aminodi-phenylamine and the side products and recycling of unconverted materials. The reaction of aniline with nitrobenzene, is perform ed in a reaction system, consisting of a solution of salts of zwitterions with hydroxides of a general formula HO-/(R1R2R3)N+-CHR4-(CH2)x-Y-/Z+ where R1 and R2 means methyl to dodecyl, R3 means methyl, ethyl, phenyl, benzyl, R4 means hydrogen or methyl x means an integer of 0 to 5, Y- means CO2-, SO3- and Z+ means a cation of an alkali metal Na, K, Cs or a tetrasubstituted quaternary ammonium cation, like tetramethylammonium, or their mutual combinations, wherein the amounts of both the zwitterion salt and hydroxide are at least equimolar amounts related to the amount of nitrobenzene in the reaction system, wherein 4-nitrosophenylamine and/or 4-nitrodiphenylamine arise, which after hydrogenation produces 4-ADFA, and after the reaction at least a half of the reaction medium is recycled. The reaction medium is form ed separately and/or it will be formed in situ in the reaction system from starting materials. The liquid medium for the reaction of aniline with nitrobenzene i s formed of water and/or at least one organic compound, chosen from among aniline, pyridine, toluene, xylene, cyclohexane and aliphatic alcohols with 1 to 4 of carbon atoms in the molecule.
Patent CA-2354512-C (CA)
Inventor: SANDBERG JAN
IPC: B08B3/02
Filed: 1999-12-22
Granted: 2008-02-19
Abstract: L'invention concerne un dispositif associé à un procédé consistant à nettoyer les stalles d'animaux comprenant plusieurs espaces à nettoyer au moyen d'un dispositif de nettoyage automatique. Ce procédé est caractérisé par les étapes suivantes : (a) on positionne le dispositif dans une position de stationnement permettant au dispositif d'atteindre et de nettoyer un premier espace, (b) on nettoie ce premier espace en commandant manuellement le dispositif, (c) on répète les étapes (a) et (b) jusqu'à ce que tous les espaces de la zone à nettoyer aient été nettoyés par le dispositif. Pour la programmation du dispositif, les mouvement effectués pendant les étapes ci-dessus sont enregistrés par des moyens prévus à cet effet et envoyés dans l'unité de commande par le biais de signaux représentant ce mouvements. Ces étapes sont enregistrées dans une mémoire installée dans l'unité de commande du dispositif, et le contenu de la mémoire sert de programme à l'unité de commande et permet de commander automatiquement le dispositif pendant le nettoyage suivant de la même stalle.